Channel Status / Fault Leds; Pwr Led - Siemens SIMATIC ET 200SP HA Equipment Manual

7.2.3

Channel status / fault LEDs

Definition
The channel status and channel fault LEDs provide you information about the status and faults
of the channels.
Description
Regardless of the parameter assignment, the green LED channel status shows the signal level at
the input terminal. It lights up starting at approximately 10 V of terminal current.
The red channel fault LED lights up when a channel diagnostics is active for an enabled channel.
The channel status and channel fault LEDs indicate the following:
LED channel status LED channel error
Off
On
Off
On
7.2.4

PWR LED

Definition
The PWR LED provides you status information about supply voltage L+.
Description
The PWR LED indicates the following status:
DI 16x24VDC HA
Equipment Manual, 10/2020, A5E39265608-AD
Meaning
Process signal = 0 and
Off
• Channel disabled or module switched off
• Channel enabled and no channel diagnostics pending
• Module diagnostics pending
Process signal = 1 and
Off
• Channel disabled or module switched off
• Channel enabled and no channel diagnostics pending
• Module diagnostics pending
Process signal = 0 and
On
• Channel enabled and channel diagnostics pending
Process signal = 1 and
On
• Channel enabled and channel diagnostics pending
PWR LED Meaning
Supply voltage L+ missing.
Off
Supply voltage L+ present.
On
Displays and interrupts
7.2 LEDs
27